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How Much Sleep Is Needed Daily?

Personally, I feel one shouldnt sleep until you are sleepy. and i think four hours of sleep is ok.i may be wrong. Please let me know how you guys feel so i can tune my culture.

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I do't really have a schedule for sleeping, i sleep as much as i can.

coz i work through the nite

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You can live a stress-free life with just 4 hours of sleep if you use the Polyphasic Sleep System: 20 minutes of sleep every 4 hours of the day! The problem with this system is that you can't combine it with a regular job or educational programme since you have to sleep every 4 hours. For solopreneurs, it can work really well.

For more information about polyphasic sleep, visit: www.stevepavlina.com/blog/2005/10/polyphasic-sleep/

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like 7 hours, least 6,

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Sleep: Are You Getting Enough?

by Constance Pittman Lindner

True or false?

*The elderly don't need as much sleep as younger people.

*Bleary-eyed drivers can stay awake better by cranking up the car stereo and rolling down the windows.

*Nighttime shift workers eventually readjust to their late hours.

*Boredom makes you tired.

They're all false. But if you got them wrong, you're not alone. A recent telephone survey of 1,027 people conducted by the National Sleep Foundation found that 85% failed a simple 12-question quiz on sleep. Not only did they "flunk the exam," but two-thirds of those polled also reported sleeping difficulties.

"It's astounding that you can go through your whole education learning about proper nutrition and hygiene but not getting adequate sleep, said Thomas Roth, Ph.D., Health and Scientific Advisor of the National Sleep Foundation as well as director of the Sleep Disorders Research Center at Henry Ford Hospital in Detroit. "Only once did my children get taught about sleep in school. It was the night before a state exam, and the children were told to get a good night's sleep in preparation. That's it."

"Most of us need eight hours of sound sleep to function at our best, and good health demands good sleep," explained Roth. The problem: Americans are averaging only about seven hours of sleep a night. One in three gets only six hours a night. "People have no idea how important sleep is to their lives," he stated.

The Function of Sleep

Why IS sleep so critical to our well-being? If resting in bed were all it took to recharge body and mind for the coming day, insomniacs could take in their favorite late night television and start the next day fresh. But surprisingly, it's not how much sleep you get that's important—it's the level of sleep you achieve that truly restores you, body and mind.

Sleep can be divided into two crucial phases:

Non-rapid eye movement sleep (NREM) sleep takes up 80% of the average dreamer's night. The earliest phase of NREM sleep begins with general relaxation of muscles. This relaxed state eventually culminates in the deepest sleep level when protein synthesis, growth hormones, immune function and the mind are given a boost. Delta waves—the slowest and largest waves—signal the onset of this most rejuvenating sleep level, which constitutes 50% of the an adult's sleep time.

Rapid eye movement sleep (REM) sleep takes up about 25% of an average sleeper's night, and is the period that proves most restorative to the mind. Dreams that occur during REM sleep provide, in a sense, a sorting through of free-floating information. Prolonged REM deprivation has been linked to excessively anxious or emotional behavior that dissipates once more regular sleeping habits are achieved. REM sleep is the most important period for mental revitalization.

Risky Consequences from Sleeplessness

According to the National Sleep Foundation, an estimated $35 billion is lost yearly in productivity, sick leave, medical expenses, and property and environmental damage because of sleep deprivation and untreated sleep disorders. It's more than a simple matter of dragging yourself through the day. On-the-job dozing can dearly cost the sleep-deprived worker and those around him. For example, the environmentally disastrous 1989 Exxon Valdez oil spill in Alaska reportedly involved the sleepiness of the tanker's third-mate.

The problem also hits much closer to home. Driver fatigue has been identified as the greatest accident risk factor affecting motor carriers. Furthermore, the National Highway Traffic Safety Administration estimates that more than 100,000 crashes per year are caused by drivers nodding off behind the wheel and that thousands die as the result of such accidents.

The National Sleep Foundation's poll even found that 23% of those questioned had dozed off while driving some time in the past year. It would seem that people know not to drive drunk but not to refrain from driving tired. Rolled-down windows, the car's blaring stereo, and a strong cup of Joe is not going to restore all the alertness necessary for safe driving. If your eyes are closing on you, the only surefire way to save your life as well as others' is to pull over to the side of the road and give in to sleep.

In addition to productivity and safety consequences, research shows that people who are chronically sleep deprived may also be more likely to suffer from:

Depression

Heart disease

Decreased enjoyment in life

Poor work performance, leading to increased absenteeism and decreased number of promotions

Is Lifestyle the Culprit?

How is it that there is an epidemic of sleepiness so severe in the United States that it kills people regularly? In the first decade of this century—prior to the widespread usage of electricity—Americans basically bedded down at nightfall. Since then, they have lived increasingly longer days. They also lead driven lifestyles, attempting to balance successful career and home lives. The exhausting modern schedule leaves little time for the "luxury" of sleep.

Today's lifestyle is so busy that people often don't have the time to recognize the symptoms of fatigue unless they're at a task that bores them. This has given rise to the notion that boredom brings on sleepiness. In truth, boredom only brings sleepiness to your attention.

Who is Most Affected?

Late shift workers. Not only do Americans give up a good night's rest in an attempt to keep up with the hectic pace of the electronic age, many, including late shift health care, military and public safety workers, nuclear power plant operators, medical residents, and long-haul truck drivers, are building daily schedules against the body's natural circadian rhythm. That rhythm dictates that the longest period of sleepiness occurs during the hours of 1–6 a.m. Thus, people who work the late shift lose out on the time that the body is programmed for the deepest and most beneficial sleep.

Older adults. The elderly, too, cope with a special set of difficulties that keeps them from getting the sleep they need. Aging brings on a host of health-related problems that interrupt sleep, such as pain from arthritis, medications with side effects that disturb rest, or depression brought on by the discomforts of the aging process. More than any other population, the elderly rely on medications that keep them up at night. Moreover, a more sedentary lifestyle doesn't allow for the expenditure of energy that results in restful sleep. Last, a slowing of what is known as delta wave activity in the brain doesn't allow for the same degree of deep sleep per night as enjoyed in youth.

But none of this means in any way that the elderly don't need as much rest as everyone else. The combination of conditions that change the sleep habits of the elderly only indicates that they need to alter their sleep habits so that they get enough shut-eye.

Crib Sheet

In general, people are so used to going without enough sleep that they don't recognize that their sleeping habits make sound slumber unlikely. Following these simple tips will help you settle down for a good night's rest. To improve the quality of your sleep as well as to get more restful sleep:

Avoid caffeine, nicotine, alcohol, and exercise at least four hours before bedtime. Caffeine and nicotine are stimulants, and alcohol, though a depressant that makes falling asleep easier initially, interferes with deep sleep later on during the night. Exercise also acts as a stimulant, but a workout earlier in the day can improve nighttime rest.

Leave worrying outside the bed. If you stay awake worrying about things you have to tackle the next day, write out a list of "to-dos" to take the pressure off. Then put the list aside to deal with the next day.

Keep other activities out of the bedroom. Don't confuse your bedroom with your family room. Keep your television viewing and Net surfing out of your sleeping quarters. You need to associate your bedroom with sleep and not activities that will keep your mind engaged.

Don't try to "force" yourself to sleep. You'll just lie awake staring at the clock. After 20 minutes of wakefulness, go to another room to read or watch TV. Return to your bedroom only when you've become tired enough to sleep.

Temperature counts. Keep your bedroom set up for a restful night's sleep with a comfortable mattress and proper temperature setting. A too-hot or too-cold room can keep you awake.

Reduce noise levels. Apartment-dwellers with noisy neighbors or those on heavily trafficked streets can block out noise with a fan or sound-simulating machine that mimic nature sounds (such as the ocean or rain).

Avoid stimulation before sleeping. Try not to engage in anything that will give you a second wind just before bed, such as viewing an action-packed movie or sitting in a brightly lit room. Instead, try listening to soothing music or reading.

Slow down. Don't hurriedly get ready for bed at the last minute. Do your washing up and teeth-brushing a while in advance. Try to stick with an early-to-bed, early-to-rise pattern. That way, you won't go to bed too late during the work week and need an alarm clock each morning to wake you out of a sound sleep.

If you're troubled with chronic difficulties falling asleep—or staying asleep—see a doctor. You may discover, for example, that what seems like simple snoring is actually sleep apnea, a treatable condition that repeatedly rouses an estimated 18 million Americans from their dreams during the night.

Other sleep disorders, such as restless legs syndrome (involuntary jerking of the legs just when drifting off) and narcolepsy (sleepiness varying in intensity from weakness when laughing to feeling as though you could sleep endlessly without feeling sated) should also be discussed with your physician. Along with treating specific disorders, physicians may recommend any of several behavioral treatments, such as progressive relaxation techniques, biofeedback, cognitive behavioral therapy, yoga, and/or meditation. As a last resort, your doctor may prescribe sleep aids such as the benzodiazepines estazolam (ProSom), flurazepam (Dalmane), quazepam (Doral), temazepam (Restoril), and triazolam (Halcion), antidepressant medications, the cyclopyralone zaleplon (Sonata), or the imidazopyridine class drug zolpidem (Ambien).

RESOURCES:

National Center on Sleep Disorders Research

NIH National Heart, Lung, and Blood Institute

http://www.nhlbi.nih.gov/

American Academy of Sleep Medicine

http://www.aasmnet.org/

National Sleep Foundation

http://www.sleepfoundation.org/

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Six hours minimum for Adult 12 hours for the babies.

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your sleeping hours depend on your age

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but it was reported that major al-mustapha (yeah, abacha's man) sleeps for bout an hour or less daily during his active days. he looks healthy to me,

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8 hour sleep is good for the body each day

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you can sleep a whole month if you like but when it comes to need, give and take your body wont fucntion well with less than 6hrs of sleep in a day, 8hrs is not a bad idea.

yeah 6-8 hrs.

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Adults require at least 8 hours of sleep everyday, cant quote a source now bt its correct.

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6 to 8 hours tell that to my dad who sleeps some 4 hours evevry day well i like to sleep in the afternoon cause am a night person i dont sleep up to 6 hours a day to much sleep is bad and to little is no good either

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you know, the longer i sleep, the rustier i feel when i wake up, but then,maybe its just me,

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You need 6-8 constitent hours of sleep.

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damn joftech is that good for the bodY

I need about 8 hrs, but more is always good

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I only sleep during the day. IMO 4 hours is OK, it's not how long but how peaceful and how good.

At times in a 24 hour period i may only sleep for just 1 hour and i will just be as fit as when i sleep for 4 hours.

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8 * 3 = 24, hence 8 hours work, 8 hours recreation and 8 hours sleep, QED. abbreviation for quod erat demonstrandum (Latin “which was to be proved”), added at the end of a geometry proof.

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yea like 6 to 8 hrs good enough if u not too busy.

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15 hour sleep is not a crime.

At least 6 hours. And at most ---- the longest you can go! Sleep is fxcking good!

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so you are agreeing that we could still go lower,

am goin to sleep now , got to go to work tomorrow

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hmm, am actually lookin at what could be considered as the very limit, the very required for a day. those considered healthy could

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6 - 8 hours Max is healthy

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you guys are being too "ideal". what i'm looking for is the very limit! medically accepted at the extreme.

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